baber/WOPTO huggingface dataset:
Patent GB-503673-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B19/00
Filed: 1937-10-07
Abstract: 503,673. Optical sound recording and reproducing. KODAK, Ltd. Oct. 7, 1937, No. 27212. Convention date, Oct. 7, 1936. [Class 40 (ii)] [Also in Group XX] An optical system for producing a uniform flat image 26 of a linear light source 22, more particularly for sound recording or sound reproduction, comprises an objective 25 having an inwardly curved image field and a toric lens 21 positioned to receive light from source 22 and to focus it to form two astigmatic images, one of which is a curved line 23 in the curved image field of the objective and has a width which is reduced relatively to the source, and the other of which, 24, is substantially in the entrance pupil of the objective and has an area greater than said entrance pupil. Various forms of toric lenses are described including one having a non-circular minor curvature on the principle mentioned in Specification 461,259, and one in which the minor radius of curvature varies along the meridian of the major curvature as claimed in Specification 503,751
Patent GB-474272-A (GB)
Title: An improved machine for shaping foot arch supports or other plate like articles
IPC: A43D8/00
Filed: 1936-10-07
Abstract: 474,272. Shaping foot-arch supports &c. SCHOLL MANUFACTURING CO., Ltd., and NORRIS, G. THORNTON-. Oct. 7, 1936, No. 27218. [Classes 83 (ii) and 83 (iv)] Stamping.-In fitting or shaping foot-arch supports or the like, means is provided rapidly to bring the shaping device and work to the operative position with a light pressure, and subsequently to apply more powerful pressing means. As shown, a die 15, which is interchangeable, is carried on a screw 5 and prevented from rotating by a head 14. The screw is traversed by a wheel nut 8, which may be rotated by a knurled surface 6 thereon or by means of a lever 13 and pawl and ratchet mechanism 12. The lever and ratchet wheel are mounted on a squared or hexagon shaped boss 11 so that by reverting the drive may be reversed for umclamping the work or the position of the lever arranged for short vertical strokes so as not to move the apparatus while operating.
Patent GB-1502057-A (GB)
Title: Tin electro-plating solution
IPC: C25D3/32
Filed: 1976-06-30
Abstract: 1502057 Tin electro-plating SUMITOMO ELECTRIC INDUSTRIES Ltd 30 June 1976 [15 July 1975] 27234/76 Heading C7B Sn is electro-plated from a bath containing 30-300g/l sulphamate, 15-300g/l Sn<SP>++</SP> and 5-100g/l of an aromatic sulphonic acid or salt thereof having an OH group and optionally a CH 3  group on the aromatic nucleus. Addition agents may be included, namely 1-30g/l of a nonionic or anionic surfactant or 1-10g/l of animal glue or gelatine. Aromatic compounds specified are cresol-, phenol- and naphtholsulphonic acids (all isomers) and their Na and K salts. Surfactants listed are polyethyleneglycol nonylphenol ether, -isooctyl ether and -lauryl ether, and Na n-octyl sulphate. Operation at 50-80‹C using a c.d. of 1-100A/dm<SP>2</SP> is specified. Cu substrates so plated exhibit excellent soldering properties. Cu wire may be first cathodically degreased in an NaOh/ CO 3 /PO 4  bath then H 2 SO 4  dipped.
Patent GB-823263-A (GB)
Title: Improvements in or relating to nuclear particle discriminators
Inventor: BROOKS FRANCIS DEY
IPC: G01T1/208
Filed: 1956-09-05
Abstract: 823,263. Nuclear particle discriminator. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 28, 1957 [Sept. 5, 1956], No. 27245/56. Class 40 (3). Discrimination between heavily ionising particles, e.g. alpha particles, protons, fast neutrons, &c., and electron excitations, e.g. gamma rays, is performed by comparing the decay time of their scintillations in an organic phosphor, e.g. stilbene, quaterphenyl, &c. For each scintillation, voltage pulses are obtained from each of the two last dynodes of the photomultipliers g (Fig. 1). The first pulse is integrated by the resistance R6 and the condenser C2 to produce a pulse h, the amplitude of which is a function of both amplitude and duration of the first pulse. The second pulse is modified by the pulse stretching circuit D R3 and C1 and integrated to produce a pulse hc whose amplitude is a function of the amplitude of the second pulse. After amplification in 1 and 2 the two pulses are subtracted in the long-tailed pair 3 to produce a pulse h-hc the amplitude of which is a function of the scintillation decay time. The bias of the amplitude discriminator 4 can be set to allow only pulses over a selected amplitude, corresponding to a selected decay time to trigger the discriminator and open the gate 5 to allow the pulse developed across R1 in the anode circuit of the photo-multiplier to operate either a ratemeter or a kick-sorter 6 (pulse amplitude analyser). Alternative arrangements such as replacing the amplitude discriminator by a two-channel kick-sorter or using a delay line to produce the pulse hc (Fig. 8, not shown) are described.
Patent GB-656032-A (GB)
Title: Improvements in or relating to pipe joints and the like
Inventor: COOKE BRYAN
IPC: F16L23/22
Filed: 1948-10-21
Abstract: 656,032. Pipe joints. VICKERS-ARMSTRONGS, Lad. Oct. 21, 1948. No. 27400. [Class 99(i)] [Also in Group XXVI] A pipe joint comprises a spigot 2 and a faucet 3 attached to the respective pipe ends, means, such as nuts and bolts 4, for drawing the spigot and faucet together, and a packing ring (see Group XXVI), which is positioned in a. seating formed between the adjacent pipe ends and comprises a single annular core member made of readily deformable material, e.g. synthetic rubberlike material, which is positioned between separate inner and outer annular reinforcing guard members made of a less readily deformable material, e.g. metal or hard fabric, so that it stands proud of the guard members on each side thereof for respectively contacting the two adjoining pipe ends, the guard members restricting flow of the core in an inward and outward radial direction when axial pressure is applied to the ring.
Patent GB-1117610-A (GB)
Title: Internal combustion engine piston assemblies
IPC: F02F3/22
Filed: 1965-06-29
Abstract: 1,117,610. Cooling pistons. J. P. HINDLEY (Continental Aviation & Eng. Corp.). 29 June, 1965, No. 27409/65. Heading F2T. [Also in Division B3] An internal combustion engine piston 10 is cooled by circulating coolant through a cavity 40 formed in the piston head 12 and closed by a collar 30 fitted around a reduced portion of the head and secured thereto by electron beam welding. Cooling oil is supplied by the engine pump 56 through a nozzle 54 to the cavity 40 through an inlet 48 and is returned to the interior of the piston through an outlet 52. Piston ring grooves 38, 38A may be formed in the collar.
Patent GB-647712-A (GB)
Title: Static equipment for arc and resistance welding
IPC: H01F29/10
Filed: 1946-09-12
Abstract: 647,712. Supply systems for electric welders. OBERLI, E. Sept. 12, 1946, No. 27471. Convention date, July 18, 1945. [Class 38 (iv)] An arc or resistance welding load is supplied with A.C. or D.C., as required, from a 3-phase supply circuit 1 through the combination of three single-phase transformers 3 with starconnected primary windings through switch 7 and a dry rectifier 5 which may be connected in or out of.circuit by switch 6. Each transformer has an adjustable magnetic shunt 4 for adjustment of current output and an opposing winding 2 in series with the secondary winding for ballasting. When welding with A.C. the load is connected to the output terminals of a transformer. The rectifier also acts as a current stabilizer when arc welding with D.C. The apparatus may be contained in a transportable tank and may be oil-immersed.
Patent GB-759115-A (GB)
Title: Improvements in or relating to apparatus for heating gases
IPC: F28F21/00
Filed: 1954-09-23
Abstract: 759,115. Making gas heating apparatus. NAUCLER, J. O., and INDUSTRIKEMISKA AKTIEBOLAGET. Sept. 23, 1954 [Sept. 26, 1953], No. 27499/54. Class 83 (2). In the production of recuperative apparatus for heating gases comprising a metal heating unit consisting of collecting and distributing headers interconnected by tubes and enclosed in a casing, preferably lined with refractory material, with an inlet and an outlet for a gaseous heating medium, the heating unit after assembly in the casing is subjected to a heat treatment such as annealing according to a predetermined plan whereby the casing is utilised as a heat treatment furnace. The heating unit is preferably of welded construction and comprises a bundle of tubes having a length of 5 meters and a diameter of 2.5 meters. The unit may be pre-assembled or may be constructed within the casing which generally comprises a vertical bricked shaft. The latter was first dried by a log fire for about two days at a temperature not exceeding 250‹ C., and the gas burner intended for normal working was then ignited and the unit heated slowly for about seven hours without any gas passing through the tubes. A slow passage of gas through the tubes was then started and after six hours the temperature was raised to 350‹ C. During the following twelve hours the temperature was raised to the annealing temperature of 750‹ C. The supply of heat and the passage of gas through the tubes then ceased and the temperature was permitted to equalize for one and a half hours. Finally, a slight passage of gas through the tubes recommenced and continued for one hour, the tube temperature being reduced to 250-300‹ C.
Patent GB-295861-A (GB)
Title: An improved arrangement of springs for sliding windows or the like
IPC: E05D13/00
Filed: 1927-10-17
Abstract: 295,861. Kreissig, E. Oct 17, 1927. Strip and thin plate springs. - Springs 1 for balancing a window sash &c. are normally curved and secured to the frame the inturned ends engaging rollers 5 on the sash so that the vertical component of the force exerted on the sash is constant. In a modification, shown in Fig. 5, the sash &c. is supported by attached springs 1 passing over fixed pulleys sand adapted to straighten against each other as the sash descends.
Patent GB-223062-A (GB)
Title: Improvements in or relating to shock absorbers for vehicles
IPC: B60G11/36
Filed: 1923-11-02
Abstract: 223,062. Vaughan, C. F. Nov. 2, 1923. Resilient shackles. - In a shock-absorber for vehicles as described in Specification 21139/14 and comprising t w o blocks a, c, Fig. 1, adapted for pivotal connection to the vehicle frame and one end of the vehicle spring respectively as shown in Fig. 3, and helical springs d disposed between the blocks and each surrounding a guide bolt b secured to the block a and adapted slidably to engage the other block c, the blocks being mounted in pairs connected by shackle pins h, the sliding block c has long bearing surfaces to ensure lateral rigidity and provide adequate wearing surfaces. Recoil springs e are provided on the lower ends of the bolts b between nuts f and the sliding block c. Lubricant applied at a single hole k in the block a, flows past the upper pin h, through channels l to the bolts. b, and thence through channels m in the block c to the lower pin h, telescopic casings g serving to protect the springs d from dust &c.
Patent GB-503772-A (GB)
Title: Improvements in protective compositions
IPC: C09D191/06
Filed: 1937-10-11
Abstract: 503,772. Plastic jointing oompositions. MARDLES, E. W. J. Oct. 11, 1937, Nos. 27567/37 and 11230/38. [Class 22] [Also in Groups IV and III] A plastic jointing composition consists of wool fat, or a solution thereof in a solvent, and a synthetic or natural hard resin, which is neutral or of low acidity, and is soluble in hydrocarbons. The final composition contains up to 50 per cent of the rosin calculated on combined resin and wool fat. Up to of the wool fat may be replaced by petroleum jelly. Up to ¢ of the resin may be replaced by beeswax, carnauba wax, or high melting paraffin wax. Resinous materials specified are, coumarone, dammar, ester gum, processed copals, and the resinates of barium, calcium, aluminium, copper, magnesium, or zinc. Pigments, and water repellant substances such as barium or magnesium stearate, triphenyl phosphate may be added. In an example, a plastic composition consists of wool fat, barium resinate, zinc oxide or zinc chrome, and barium stearate. The composition is applied moistened with a solvent such as white spirit, solvent naphtha, or chlorinated hydrocarbons, and is used for filling joints of aeroplane parts before riveting together.
Patent GB-224085-A (GB)
Title: Improvements in the process of fractional distillation
IPC: B01D3/42
Filed: 1923-11-03
Abstract: 224,085. Dorman, Long, & Co., Ltd., Roelofsen, J. A., and Lowe, H. M. Nov. 3, 1923. Column stills and rectifiers. - In separating volatile liquids by distillation in a fractionating column a, the vapours from the top of the column are passed through a condenser c, and the condensate is divided into two streams in a ratio independent of the rate of distillation, one stream serving as reflux in the column a and the other passing away as distillate. The condensate passes by a pipe u through a vessel d to separate a lower layer of water, if steam has been used in the distillation, and by a pipe g to a dividing-box h having a vent-pipe h<1>, and two outlet pipes i, j with regulating valves or cocks k, l. The outlet pipe i leads condensate through a sight-box m and pipe q to the upper part of the column a, and the outlet pipe leads through a sight-box n and pipe r to the distillate receiver. The sight-boxes m, n are open to the atmosphere through ventpipes o, p, and may contain V-shaped measuring notches over which the liquid flows to indicate the rate of flow. An overflow pipe s from the dividing-box h leads to the sight-box m. Slits or V-shaped notches which may be adjustable may be formed in the sides of the box h to divide the condensate. in place of the cocks k, l.
Patent GB-243297-A (GB)
Title: Improvements in carburetters
IPC: F02M9/133
Filed: 1924-05-21
Abstract: 243,297. Hodgson, A. S. May 21, 1924. Drawings to Specification. Spray carburettors.-The carburettor described is identical with that described in Specification 243,034 with reference to Figs. 3, 4. 4A, and 4B thereof, but the claims of the two Specifications differ.
Patent GB-339981-A (GB)
Title: Improvements in means for shunting railway wagons
IPC: B61J3/00
Filed: 1929-09-13
Abstract: 339,981. Huskisson, W. M., and Lloyd, G. E. Sept. 13, 1929. Tracks having a single guiding rail. - An auxiliary track for a wagon tractor comprises a grip rail R<1> laid alongside the waggon track V<1> and side rails R<3>.
Patent GB-1474353-A (GB)
Title: Sliding vane type rotary pump
IPC: F04C18/344
Filed: 1975-07-02
Abstract: 1474353 Rotary positive-displacement fluid-machines KLOCKNER-HUMBOLDTDEUTZ AG 2 July 1975 [6 July 1974]  27827/75 Heading F1F A sliding-vane pump for a compressible fluid such as air, has a steel liner 4 for the casing 1, steel vanes 10 in the rotor 5, roller bearings 6 for the latter, fixed annular thrust-plates 8 to centre the rotor and vanes, and spiral grooves 9 in each thrust plate to distribute a lubricating mixture of working- fluid and oil, which leaks from the bearings, between the vanes and the plates and liner, the vanes and liner being non-electrically nickel-plated. Pins 19, 20 prevent the thrust plates rotating. The bearings may be lodged in bushes 7 integrated with the thrust plates. The rotor may be driven through a gear 1b and a bell-shaped hub 15.
Patent GB-1342854-A (GB)
Title: Method and apparatus for the purification of waste liquids
IPC: C02F1/52
Filed: 1972-06-14
Abstract: 1342854 Purifying waste liquids INGENJORSFIRMAN VATTENANLAGGNINGER STIG LINDQVIST AB 14 June 1972 [14 June 1971] 27844/72 Heading C1C A method of purifying waste liquids containing biologically decomposable organic material and phosphorus compounds (e.g. sludge free sewage), comprises passing the waste liquid in the presence of oxygen or oxygen-containing gas (e.g. air or oxygen enriched air) through a bed containing iron and/or aluminium, in which microfiora capable of decomposing the organic material is formed and iron and/or aluminium is (are) dissolved to flocculate the phosphorus compounds, and separating (e.g. by settling or filtering) the floes from the purified sewage. Chromium compounds, if present in the waste liquid, are removed by the process. The bed may comprise inert material, e.g. macadam. In the Figure the waste liquid is passed from inlet 11  through bed 12 in counterflow to oxygen-containing gas from inlet 14 and the floes are separated in settling compartment 16.
Patent GB-969583-A (GB)
Title: Method of forming multicolour synthetic plastic articles
IPC: B29C39/12
Filed: 1962-07-19
Abstract: 969,583. Table mats. M. FRENKEL. July 19, 1962 [July 19, 1961], No. 27873/62. Heading A4A. [Also in Divisions B5 and B6] Articles, e.g. table mats, comprise adjacent sections of different coloured plastics, which may have a backing layer of fabric or foamed plastic. Beads 12, 18 may be formed round edges and between adjacent sections. The articles may be made of polyvinyl-chloride, vinyl copolymers, cellulose acetate, polyester, epoxies and other plastics which can be prepared in a viscous form necessary in the manufacture. The foamed backing may be polyurethane, vinyl copolymer &c.
Patent GB-355072-A (GB)
Title: Glove
IPC: A41D19/00
Filed: 1930-09-19
Abstract: 355,072. Glove seaming. RICHTER A K T . - G E S., J., Limbach, Saxony, Germany. Sept. 19, 1930, No. 27990. Convention date, April 22. [Classes 112 and 141.] A glove in which the edges of the fabric or leather lie flat upon each other and are united by a seam embodying more than one series of stitches, is sewn together by a threethread overpast seam. The loops 4, 5 of two of the threads are united by the third thread 3.
Patent GB-914655-A (GB)
Title: Improvements in or relating to printing telegraph apparatus
IPC: B41J19/10
Filed: 1959-08-17
Abstract: 914,655. Typewriter and like machines. HANDLEY, J. Aug. 17, 1959, No. 28014/59. Addition to 808,704. Class 100 (4). A type printing telegraph comprising a printing head 47, means for urging it continuously in a letter-space direction, a pawl 9 normally engaging with a ratchet to prevent movement of the head in a letter-space direction, means for withdrawing the pawl 9 from the ratchet to permit movement, spring means 17 for advancing the said pawl 9 to meet a succeeding tooth, and further spring means 15 arranged to reduce the force of impact with the pawl on the succeeding tooth. As described in the parent Specification, the head 47 is continuously urged in a letter-space direction but in this case it is urged by hydraulic means similar to that described in Specification 874,125, and which comprises a ram 1 acting on a roller 3 carried by a traverse arm 2. Pivotally mounted at 5 at the end of arm 2, is a crank 4 having a roller 6 riding in a channel 7 on the printing head carriage unit 11 which is guided in letter-space direction by rollers 45 in guides 46. The pawl 9 is carried on the unit 11 and is connected to a shaft 12, which is connected to the unit 11 through a washer 19 and a block 50. Shaft 12 carries a piston 13 and collar 14, free on shaft 12, and a weak spring 17 and a strong spring 15. Leading to piston 13 is a passage 51 for hydraulic fluid fed via a valve 20 from a vessel 22 and pipe 21. When a letter-space operation begins, pawl 9 is lifted from the rack 10 and weak spring 17 moves piston 13 to the left, Fig. 3. The space to right increases and fluid enters from valve 20. When pawl 9 engages with next tooth of rack 10, the strong spring 15 acts as a shock-absorber. The printing unit 11 continues to move forcing fluid from space to right of piston 13 to provide an hydraulic deceleration until the washer 19 moves against the flange of collar 14 (Fig. 4, not shown).
Patent GB-760291-A (GB)
Title: Improvements in or relating to tamperproof containers and closures therefor
Inventor: MARKES DOUGLAS HENRY
IPC: B65D39/04
Filed: 1954-09-28
Abstract: 760,291. Stoppers. METAL BOX CO., Ltd. May 25, 1955 [Sept. 28, 1954], No. 28023/54. Class 125(3). A cylindrical aluminimn container 1 has its end 2 inturned to form an obtuse angle with the sides and is provided with a groove 3 the container being closured by a rubber or polyethylene plug 4 with annular skirt 5, resilient flange 6 and annular notch 7 into which is inserted the inturned end 2, a tamperproof metal capsule being placed over the plug and having a cram 9 engaging a rim 8 on the plug flange to press down the flange to overlie end 2 and a skirt 10 rolled into the groove 3 on the container.
Patent GB-230141-A (GB)
Title: Improvements relating to the manufacture of cloth
IPC: D03D15/00
Filed: 1923-11-09
Abstract: 230,141. McKee, H. M., and Clark & McKee, Ltd. Nov. 9, 1923. Hair fabrics; yarns specially twisted or doubled, fabrics with; specially distributed yarns of different twists, fabrics with. - In making cloth wherein hair is interwoven with other material or materials, one or more' hair threads of right hand twist are followed by one or more hair threads of left hand twist in the warp, or two or more shots of right hand twisted hair threads are used alternately with two or more left-hand twisted hair threads in the weft, or threads obtained by twisting together right-hand twisted hair threads with left-hand twisted hair threads are used in the weft or warp or both.
Patent GB-1249080-A (GB)
Title: Control arrangements for variable-ratio power transmission mechanisms
Inventor: UTTER ROBERT CLINTON
IPC: F16H59/28
Filed: 1970-06-11
Abstract: 1,249,080. Hydrostatic transmission control. GENERAL MOTORS CORP. 11 June, 1970 [3 Oct., 1969], No. 28268/70. Heading F2D. An hydrostatic transmission 14 driven by a gas turbine 10 is controlled by a shift valve 32 subjected to opposing signals from an enginedriven governor 44 and, over the initial portion of its movement, by the accelerator pedal 18, the gas turbine compressor discharge pressure 70 replacing the accelerator pedal signal over the remainder of the pedal movement. The valve 32 selectively connects a supply line 52 to upshift and downshift lines 30, 28 connected through a reversing valve 26 to a conventional servo ratio control 20 of the transmission. The conventional flyball type governor 44 urges a piston 34 in the valve 32 against a spring 46, the other end of which abuts a second piston 48. The piston 48 is positioned by cams 56, 58, having respective arms 60, 62 connected to the accelerator pedal 18 and to a piston 64 subjected to compressor discharge pressure 70. After initial movement of pedal 18, cam 56 is moved out of contact with piston 48 and cam 58 takes over control.
Patent GB-240674-A (GB)
Title: Improvements in conveying mechanism for biscuit making or the like machines
IPC: A21B5/02
Filed: 1924-11-27
Abstract: 240,674. Vicars, E. L. Nov. 27, 1924. Bakers' ovens.-In biscuit-making and like machines a series of cams operated from the main driving shaft actuate levers which grip the biscuit carrying pans and lift them from an endless conveyer into range of feeding mechanism for an oven. The apparatus is designed to lift three pans simultaneously. Pans 21 are fed intermittently by an endless conveyer 20 into position between fingers 38 attached to levers 35 which are moved upwards by levers 30, 31 into the same plane as fingers 44. The levers 35 are then forced apart by the action of cams 25 on rods 36 attached at 37 to the levers, and at the same time fingers 44 are forced into positions to grip the pans and to feed them towards the oven by the action of cams 26 on levers 40 with rods 43 connected to the fingers 44. The levers 30, 31 are rocked bv cams 24 mounted on the same shaft 23 as the cams 25, 26. The shaft 23 is driven from the shaft 7 and has a gear 15 and geneva wheel 13 loosely mounted on it. The geneva wheel is driven by a pin 12 on a gear 11 on a shaft 10 which is driven by the shaft 7. The gear 15 is attached to the geneva wheel 13 and gears with a pinion 16 on a shaft 17 which drives intermittently the conveyer 20. The shaft 7 is connected by bevel gears and shafting to the main driving shaft of the machine. Specification 232,654, [Class 87 (ii), Moulding plastic &c. substances], is referred to.